ZHCSJ01B January   2019  – August 2019 OPA1671

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      驻极体麦克风前置放大器
      2.      OPA1671 电压噪声密度
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Operating Voltage
      2. 7.3.2 Input Bias Current
      3. 7.3.3 Common-Mode Voltage Range
      4. 7.3.4 EMI Susceptibility and Input Filtering
    4. 7.4 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Capacitive Loads
      2. 8.1.2 Noise Performance
      3. 8.1.3 Basic Noise Calculations
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11器件和文档支持
    1. 11.1 器件支持
      1. 11.1.1 开发支持
        1. 11.1.1.1 TINA-TI（免费软件下载）
    2. 11.2 文档支持
      1. 11.2.1 相关文档
    3. 11.3 接收文档更新通知
    4. 11.4 社区资源
    5. 11.5 商标
    6. 11.6 静电放电警告
    7. 11.7 Glossary
  12. 12机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

6.5 Electrical Characteristics

at VS = ±0.85 V to ±2.75 V (VS = 1.7 V to 5.5 V), TA = 25°C, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VOUT = VS / 2 (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
AUDIO PERFORMANCE
THD+N Total harmonic distortion + noise G = 1, f = 1 kHz, VO = 1 VRMS, VS = 5.5 V 0.00035%
–109 dB
IMD Intermodulation distortion G = 1, VO = 1 VRMS, VS = 5.5 V SMPTE/DIN Two-Tone, 4:1, (60 Hz and 7 kHz) 0.00158%
–96 dB
CCIF Two-Tone (19 kHz and 20 kHz) 0.0005%
–106 dB
FREQUENCY RESPONSE
GBW Gain-bandwidth product 13 MHz
SR Slew rate 4-V step, G = 1 5 V/μs
tS Settling time To 0.1%, 2-V step , G = 1 0.75 μs
To 0.01%, 2-V step , G = 1 1
Overload recovery time VIN  × gain > VS 0.35 μs
NOISE
Input voltage noise f = 0.1 Hz to 10 Hz 2.4 μVPP
eN Input voltage noise density f = 10 Hz 45 nV/√Hz
f = 1 kHz 7
f = 10 kHz 4.0
iN Input current noise f = 1 kHz 4.7 fA/√Hz
OFFSET VOLTAGE
VOS Input offset voltage VCM = (V+) ±1.6 mV
VCM = (V–) ±1.6
±0.25 ±1.25
TA = –40°C to 125°C ±0.25
dVOS/dT Input offset voltage drift TA = –40°C to 125°C ±0.3 ±2.2 μV/°C
PSRR Input offset voltage versus power supply VCM = (V–)  ±30 ±130 μV/V
INPUT BIAS CURRENT
IB Input bias current ±10 pA
IOS Input offset current ±10
INPUT VOLTAGE RANGE
VCM Common-mode voltage range V– V+ V
CMRR Common-mode rejection ratio VS = 1.7 V, (V–) < VCM < (V+) – 1.25 V 74 91 dB
VS = 5.5 V, (V–) < VCM < (V+) – 1.25 V 80 96
VS = 1.7 V, VCM = 0 V to 1.7 V 60 88
VS = 5.5 V, VCM = 0 V to 5.5 V 68 102
INPUT CAPACITANCE
ZID Differential 1013 || 6 MΩ || pF
ZICM Common-mode 1013 || 2.5 GΩ || pF
OPEN-LOOP GAIN
AOL Open-loop voltage gain (V–) + 50 mV < VO < (V+) –
50 mV, RL = 10 kΩ		 97 113 dB
TA = –40°C to 125°C 106
(V–) + 200 mV < VO < (V+) –
200 mV, RL = 2 kΩ		 97 112
TA = –40°C to 125°C 105
OUTPUT
Voltage output swing from rail VS = 5.5 V, RL = 10 kΩ 10 20 mV
ISC Short-circuit current Sinking, VS = 5.5 V –57 mA
Sourcing, VS = 5.5 V 66
POWER SUPPLY
IQ Quiescent current per amplifier IO = 0 mA 0.94 1.3 mA
IO = 0 mA, TA = –40°C to 125°C 1.4
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